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Finding the Fourth Proportional to 3,353.40, 5,029.68 and 888.36

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Solution

The fourth proportional to 3,353.40, 5,029.68 and 888.36 is: 1,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.40 : 5,029.68 = 888.36 : x
  2. Step 2: Convert to fraction form
    3,353.40/5,029.68 = 888.36/x
  3. Step 3: Cross multiply
    3,353.40x = 5,029.68 × 888.36
  4. Step 4: Simplify right side
    3,353.40x = 4,468,166.52
  5. Step 5: Solve for x
    x = 4,468,166.52/3,353.40
  6. Step 6: Final answer
    x = 1,332.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.